Utah Code R313-35-70 - Radiation Survey Instruments
Survey instruments used in determining compliance with Rules R313-15 and R313-35 shall meet the requirements in Subsections R313-35-70(1) through R313-35-70(7).
(1) Instrumentation shall be capable of
measuring a range from 0.02 millisieverts, two millirem, per hour through 0.01
sievert, one rem, per hour.
(2)
Instrumentation shall be calibrated at intervals not to exceed 12 months and
after instrument servicing, except for battery changes.
(3) For linear scale instruments, calibration
shall be shown at two points located about one-third and two-thirds of
full-scale on each scale. For logarithmic scale instruments, calibration shall
be shown at mid-range of each decade, and at two points of at least one decade.
For digital instruments, calibration shall be shown at three points between
0.02 and 10 millisieverts, 2 and 1000 millirems, per hour.
(4) An accuracy of plus or minus 20% of the
calibration source shall be demonstrated for each point checked pursuant to
Subsection R313-35-70(3).
(5) The registrant shall perform visual and
operability checks of survey instruments before use on each day the survey
instrument is to be used to ensure that the equipment is in good working
condition. If survey instrument problems are found the equipment shall be
removed from service until repaired.
(6) Results of the instrument calibrations
showing compliance with Subsections
R313-35-70(3)
and R313-35-70(4)
shall be recorded and maintained for a period of three years from the date the
record is made.
(7) Records
demonstrating compliance with Subsection
R313-35-70(5)
shall be made if a problem is found. The records shall be maintained for a
period of three years from the date the record is made.
Notes
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